Maintenance And Service; Maintenance And Cleaning - Bosch ALR 900 Manual Original

OBJ_BUCH-835-002.book Page 24 Friday, October 10, 2008 8:40 AM
24 | English
Problem
Machine labours or belt squeals Height of cut too low
Cutting tines/blades not rotat-
ing
Excessive vibrations/noise
Poor collection
*In conditions with excessive tree debris (e. g. leaves, twigs, etc.) first clear the surface by using the
machine with a height of cut setting of either 3 or 4.

Maintenance and Service

Maintenance and Cleaning

Stop, remove plug from the power supply
and remove the grassbox.
Always wear gardening gloves when han-
dling or working near the sharp tines/blade.
Note: To ensure long and reliable service, carry
out the following maintenance regularly.
Regularly check for obvious defects such as
loose, dislodged or damaged tines/blades,
loose fixings, and worn or damaged compo-
nents.
Check that covers and guards are undamaged
and correctly fitted. Carry out necessary mainte-
nance or repairs before using.
F 016 L70 481 | (10.10.08)
Possible Cause
Cutting tines/blades obstructed
by grass
Belt is slipping or is damaged
Cutting tines/blades damaged
Raking/Verticutting in wet con-
ditions
Raking/Verticutting too low for
the conditions
Possible clogging
Blocked side grilles
Missing tine springs (ALR 900
only)
If the machine should happen to fail despite the
care taken in manufacture and testing, repair
should be carried out by an authorised custom-
er service agent for Bosch garden products.
In all correspondence and spare parts orders,
please always include the 10-digit article
number given on the type plate of the machine.
Removing/Fitting Raker Tines
Stop, remove plug from the power supply
and remove the grassbox.
Always wear gardening gloves when han-
dling or working near the sharp tines/blade.
Turn the machine over.
Use long-nose pliers to grip the tine 12, press
down and remove the tine 12 from the pin 11.
(see figure G)
The new tine 12 is mounted in reverse order.
Corrective Action
Increase height of cut (see "Ad-
justing the Cutting Height")
Clear obstruction (always wear
gardening gloves)
Contact Service Agent
ALR 900:
Fit replacment (see "Remov-
ing/Fitting Raker Tines")
AVR 1100:
Contact Service Agent
Increase height of cut (see "Rak-
ing/Verticutting Tips")
Increase height of cut
Check underneath the machine
and clear out as necessary (al-
ways wear gardening gloves)
Clear debris from the outside of
the side grilles
Replace tine springs (always
wear gardening gloves)
G
Bosch Power Tools